All categories

2 years ago

70000000 in scientific notation

Mathematics

2 answers:

Alla [95]2 years ago

4 0

Answer:

7 * 10^7

Step-by-step explanation:

The decimal point of the the original number is after the last zero:

70000000.

For scientific notation, you need a number from 1 to under 10. You will have 7. You must put a decimal point just to the right of the 7, like this:

7.0000000

The number of decimal places the decimal point moved is 7, so the exponent of the 10 is 7.

70000000 = 7 * 10^7

Romashka [77]2 years ago

3 0

Answer: 70000000 in scientific notation is 7 x 10^7.

You might be interested in

Katrin is making a poster for school elections. She draws a line 20.4 cm long across the poster board. She starts at one end of

nevsk [136]

Well, to find out how many times 20.4 can split into 3.4, you need to divide 20.4÷3.4 and you will get 6, and Katrin (K-A-T-R-I-N) is 6 letters, so you have enough room, the answer is yes.

3 0

2 years ago

Which expression is equivalent to the some 30 + 12

Alecsey [184]

Answer:

give a picture

Step-by-step explanation:

5 0

2 years ago

WILL AWARD BRAINLIEST

julia-pushkina [17]

Answer: a= c+11

Step-by-step explanation:

a has 9 more than b which has 2less than c

7 0

2 years ago

Scientists have discovered a vaccine for a debilitating disease. This year there were 570,000 reported new cases of the disease

Ket [755]

Answer: There are approximately 853827 new cases in 6 years.

Step-by-step explanation:

Since we have given that

Initial population = 570000

Rate at which population decreases is given by

$\frac{2}{3}$

Now,

First year =570000

Second year is given by

$570000\times (\frac{1}{3})$

Third year is given by

$570000(\frac{1}{3})^2$

so, there is common ratio ,

it becomes geometric progression, as there is exponential decline.

so,

$570000,570000\times \frac{1}{3},570000\times( \frac{1}{3})^2,......,570000\times (\frac{1}{3})^6$

a=570000

common ratio is given by

$r=\frac{a_2}{a_1}=\frac{1}{3}$

number of terms = 6

Sum of terms will be given by

$S_n=\frac{a(1-r^n)}{(1-r)}$

We'll put this value in this formula,

$S_6=\frac{570000(1-(\frac{1}{3})^6}{(1-\frac{1}{3})}\\\\=853827.16$

So, there are approximately 853827 new cases in 6 years.

6 0

2 years ago

Find the fifth term in the sequence that is defined as follows:

hram777 [196]

Answer : The fifth term in the sequence is -2.

Step-by-step explanation :

As we are given that the expression to calculate the $n^{th}$ term.

The expression is as follows:

$a_n=2(-1)^n$

where,

n is the number of term

Given:

n = 5

Now putting the value of n in the above expression, we get:

$a_n=2(-1)^n$

$a_5=2(-1)^5$

$a_5=2\times (-1)$

$a_5=-2$

Therefore, the fifth term in the sequence is -2.

5 0

2 years ago